How do I use the std::set in C++11?

Can you explain how to use std::set in C++11?

Sure! std::set is a part of the C++ Standard Library that stores unique elements in a specific order. You can include it by adding #include <set>.

What are the main features of std::set?

The main features include automatic sorting, uniqueness of elements, and efficient search operations. It uses a balanced tree structure.

How do I insert elements into a std::set?

You can insert elements using the insert() method. For example: mySet.insert(value); will add 'value' to the set.

Can I store custom objects in a std::set?

Yes, you can store custom objects, but you need to define a comparison function to maintain order.

What happens if I try to insert a duplicate element?

If you try to insert a duplicate, std::set will ignore it and the size of the set will remain unchanged.